Manman Ren 69261a6442 Stack Alignment: when creating stack objects in MachineFrameInfo, make sure
the alignment is clamped to TargetFrameLowering.getStackAlignment if the target
does not support stack realignment or the option "realign-stack" is off.

This will cause miscompile if the address is treated as aligned and add is
replaced with or in DAGCombine.

Added a bool StackRealignable to TargetFrameLowering to check whether stack
realignment is implemented for the target. Also added a bool RealignOption
to MachineFrameInfo to check whether the option "realign-stack" is on.

rdar://12713765


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169197 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 00:52:33 +00:00
2012-11-19 19:31:02 +00:00
2012-10-09 23:48:34 +00:00
2012-12-03 16:08:32 +00:00
2012-11-19 19:31:02 +00:00
2012-11-29 21:17:26 +00:00
2012-11-14 22:13:56 +00:00
2012-11-29 16:19:11 +00:00

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for the Low Level
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